Unit 2 Vocabulary Terms

Bits - the smallest unit of data that a computer can process and store
Bytes - a group of binary digits or bits (usually eight) operated on as a unit.
Hexadecimal/Nibbles - a numbering system with base 16
Binary Numbers - a numbering scheme in which there are only two possible values for each digit 0 or 1
- Unsigned Integer - just like integers (whole numbers) but have the property that they don't have a + or - sign associated with them
- Signed Integer - a 32-bit datum that encodes an integer in the range [-2147483648 to 2147483647]
- Floating Point - a positive or negative whole number with a decimal point
Binary Data Abstractions
- Boolean - a logical data type that can have only the values true or false
- ASCII - the most common character encoding format for text data in computers and on the internet
- Unicode - a modern standard for text representation that defines each of the letters and symbols commonly used in today's digital and print media
- RGB - a system for representing the colors to be used on a computer display
Data Compression
- Lossy - a data encoding and compression technique that deliberately discards some data in the compression process
- Lossless - restores and rebuilds file data in its original form after the file is decompressed